1、2017 年“東華科技-陜鼓杯”第十一屆大學生化工設計競賽秦皇島熱電廠煙氣脫硫并資源化利用項目物料計算書團隊名稱：指導老師：康建新、團隊成員：、代品一、完成時間：2017 年 8 月目錄第一章 物料. 11.11.21.3總論1方法1總項目核算21.3.1 總工藝流程圖21.3.2 物料任務2煙氣脫硝除塵工段物料氨氮廢水汽提氨工段物料二氧化硫吸收工段物料磷酸二氫銨生產工段物料.3.6.9.13.161.3.7 發(fā)煙硫酸工段物料第一章 物料1.1 總論項目使用氨法處理熱電廠含硫煙氣，脫硫效率可達 99%，聯(lián)產質量分數(shù) 96%的磷酸二氫銨做為中阿化肥廠下游產品原料；同時聯(lián)產質量分數(shù)為 20%的發(fā)煙

2、硫酸。在已確定化學生產工藝和流程后，由定性階段轉向定量階段，通過對整個生產系統(tǒng)、生產車間，以及部分重要的生產單元進行物料計算出主、副產品的產量，原材料的消耗、“三廢”排放量及組成，以及產品收率等各項經濟技術指標，從而定量地評述初步設計所選擇的工藝路線、生產方法及工藝流程在經濟上是否合理，技術上是否先進，為后階段的設計提供數(shù)據。1.2方法物料是根據質量守恒定律，利用某進出化工過程中某些已知物流的流量和組成，通過建立有關物料的平衡式和約束式，求出其他未知物流的流量和組成的過程。系統(tǒng)中物料一般表達式為：系統(tǒng)中的積累=輸入-輸出+生成-消耗式中，生成或消耗項是由于化學反應而生成或消耗的量；積累量可以是

3、正值，也可以是負值，當系統(tǒng)中積累量不為零時稱為非穩(wěn)定狀態(tài)過程；積累量為零時，稱為穩(wěn)定狀態(tài)過程。穩(wěn)定狀態(tài)過程時，可以簡化為：輸入=輸出-生成+消耗對無化學反應的穩(wěn)定過程，又可表示為：輸入=輸出和元素物料包括總質量、組分。各種方法的適用情況如表 1-1 所示：表 1-1 物料橫算式適用范圍1類別物料形式無化學反應有化學反應總式總質量式適用適用總物質的量式適用不適用由于系統(tǒng)中存在化學反應，主要采用總質量的的方法，同時列出每種物料組分的質量流量便于查找和計算。1.3 總項目核算1.3.1 總工藝流程圖從原料入廠到產品輸出，其工藝路線可分為如下 5 個工段：煙氣脫硝除塵工段、氨氮廢水汽提氨工段、二氧化硫

4、吸收工段、磷酸二氫銨工段、發(fā)煙硫酸工段。圖 1-1 產品總工藝路線圖1.3.2物料任務對于本廠，工藝采取年開工 322 天的連續(xù)操作，其中一年內的三四周（約34 天）用于固定的停車設備檢修及緊急情況處理。物料的主要任務在于： 確定煙氣處理效率和磷酸二氫銨、發(fā)煙硫酸的產量及質量分數(shù)； 確定磷酸中和劑的循環(huán)量以及損失率等指標； 確定工藝中的“三廢”排放量等公共經濟指標；2組分式組分質量式適用不適用組分物質的量式適用不適用元素原子式元素原子質量式適用適用元素原子物質的量式適用適用 匯總全流程物料，數(shù)據用于完成物料流程圖等后續(xù)設計任務。1.3.3 煙氣脫硝除塵工段物料圖 1-2 煙氣脫硝除塵工藝路線圖

5、表 1-2脫硝反應器系統(tǒng)總物料3出口物流123物流說明含 NOX 煙氣含氨空氣脫硝煙氣Temperature C370370369.999998Prere bar1.181.081.08Vapor Frac111Mole Flow kmol/hr74268.5611247.5375516.091Mass Flow kg/hr2217791.35335.072253126.14Volume Flow cum/hr3365600.2761768.46013738998.37Enlpy Gcal/hr-1037.7752.5059233-1035.2692Mole Flow kmol/hrN2547

6、23.811938.4955662.3014SO2150.550150.55O24501.5252.644754.14C0210086.85010086.85H204755.804755.8NO50.05050.05NH4HSO3000NH42SO3000H3O+000NH4+000AMMON(S)000SALT1000SALT2000HSO3-000OH-000SO3-000H3PO4000TRIAM(S)000ORTHO(S)000H3PO4(S)000SALT4000DIAMM(S)000H2PO4-000HCO3-000HPO4-000CO3-000PO4-000SALT3000NH4

7、CL0005NAOH000NACL000NA+000SODIU(S)000NAH2P(S)000SALT6000MONOS(S)000NA2HP(S)000SALT7000SALT8000DISOD(S)000NH4CL(S)000NAOH:(S)000NAOH(S)000NACL(S)000CL-000SO3000TRIPL(S)000DOUBL(S)000GLAUB(S)000SALT5000SALT9000HSO4-000SO4-000SALT10000WEGSC(S)000TRONA(S)000SALT110001.3.4 氨氮廢水汽提氨工段物料圖 1-3 氨氮廢水汽提氨工段工藝路線圖

8、表 1-3 氨氮汽提塔系統(tǒng)總物料6出口物流12131416物流說濃度氨氮廢水蒸汽含氨蒸汽低濃度氨氮廢水Temperature C8013096.1132214100.458425Prere bar22.698318931.013251.01325Vapor Frac0110SALT12000SALT13000SALT14000SALT15000H2SO4000SALT16000SALT170007Mole Flow kmol/hr2564.14347222.03374137.496432648.68078Mass Flow kg/hr46654.626840002456.1180648198.

9、5088Volume Flow cum/hr47.33984942715.139364137.9552749.2883645Enlpy Gcal/hr-170.7519-12.651678-6.8730889-176.53049Mole Flow kmol/hrN20000SO20000O20000C020000H202495.50272222.03374116.2532122601.29625NO0000NH321.2685696021.24321790.03835033NH4HSO30000NH42SO30000H3O+3.2592e-1009.237e-1201.1034e-09NH4+

10、0.0130257302.005e-1122.6235e-05AMMON(S)0000SALT10000SALT20000HSO3-0000OH-2.6553078703.767e-1102.64230837SO3-0000H3PO40000TRIAM(S)0000ORTHO(S)0000H3PO4(S)0000SALT40000DIAMM(S)00008H2PO4-0000HCO3-0000HPO4-0000CO3-0000PO4-0000SALT30000NH4CL0000NAOH0000NACL0000NA+23.673061903.357e-10923.6730619SODIU(S)0

11、000NAH2P(S)0000SALT60000MONOS(S)0000NA2HP(S)0000SALT70000SALT80000DISOD(S)0000NH4CL(S)0000NAOH:(S)0000NAOH(S)0000NACL(S)0000CL-21.03077970021.0307797SO30000TRIPL(S)0000DOUBL(S)0000GLAUB(S)0000SALT500001.3.5 二氧化硫吸收工段物料圖 1-4 二氧化硫吸收工段工藝路線圖9SALT90000HSO4-0000SO4-0000SALT100000WEGSC(S)0000TRONA(S)0000SAL

12、T110000SALT120000SALT130000SALT140000SALT150000H2SO40000SALT160000SALT170000表 1-4二氧化硫吸收系統(tǒng)總物料10物流6182733物流說明脫硝煙氣含氨蒸汽脫硫煙氣脫硫母液Temperature C80808534.719615Prere bar1.081.013251.013251.21325Vapor Frac11Mole Flow kmol/hr75527.524821.25229974702.03210844.Mass Flow kg/hr2253126.14361.947502231208.03808057.V

13、olume Flow cum/hr2051911.19613.047842194098.33826.60Enlpy Gcal/hr-1207.889-0.222506-1156.1216-14370.8Mole Flow kmol/hrN255708.0363055707.140.89581SO2150.5501.5004700.000721O24742.7061904742.56200.14408C0210086.85010079.831.09151H204824.402880.00908154166.6609210465NO4.3147496304.312040360.0027089NH4

14、HSO30000NH42SO30000H3O+0000.000574NH4+000220.23AMMON(S)0000SALT10000SALT20000HSO3-00083.7963OH-0000.00083SO3-00065.252111H3PO40000TRIAM(S)0000ORTHO(S)0000H3PO4(S)0000SALT40000DIAMM(S)0000H2PO4-0000HCO3-0005.9209922HPO4-0000CO3-0000.005721PO4-0000SALT30000NH4CL0000NAOH0000NACL0000NA+0000SODIU(S)0000N

15、AH2P(S)0000SALT60000MONOS(S)0000NA2HP(S)0000SALT70000SALT80000DISOD(S)0000NH4CL(S)0000NAOH:(S)0000NAOH(S)0000NACL(S)000012CL-0000SO30000TRIPL(S)0000DOUBL(S)0000GLAUB(S)0000SALT50000SALT90000HSO4-0000SO4-0000SALT100000WEGSC(S)0000TRONA(S)0000SALT110000SALT120000SALT130000SALT140000SALT150000H2SO40000

16、SALT160000SALT1700001.3.6 磷酸二氫銨生產工段物料圖 1-5磷酸二氫銨系統(tǒng)工藝路線圖表 1-5磷酸二氫銨系統(tǒng)總物料13進口出口物流3340434658物流說明脫硫母液磷酸二氧化硫汽提廢水磷酸二氫銨溶液Temperature C34.719615255080121.005132Prere bar1.213251.01325222.1Vapor Frac00100Mole Flow kmol/hr210844.721524.31704156.38145210860.619283.208544Mass Flow kg/hr3808057.2627215.5419842.561

17、93798712.7726717.4709Volume Flow cum/hr3826.6030231.2305172061.33303909.2969416.092164Enlpy Gcal/hr-14370.873-91.23283-11.14716-14195.344-80.100103Mole Flow kmol/hrN20.895813870000SO20.000721060148.2644200O20.1440896701.098803100C021.0915162907.018230300H20210465.799301.9161990210860.18159.122496614

18、NH31.57703383000.20633775.8748e-06NH4HSO300000NH42SO300000H3O+0.000574700.222228203.1676e-050.01842834NH4+220.233317000.11587421.10420966AMMON(S)00000SALT100000SALT200000HSO3-83.79635440000OH-0.000832134.9498e-100.115905883.9804e-10SO3-65.25213450000H3PO40221.95638000.00015516TRIAM(S)00000ORTHO(S)00

19、000H3PO4(S)00000SALT400000DIAMM(S)00000H2PO4-00.2222282000.00020109HCO3-5.920992260000HPO4-03.1907e-0005.6202e-09CO3-0.005721830000PO4-08.7027e-2002.4608e-17SALT30000222.17826NH4CL00000NAOH00000NACL00000NA+00000SODIU(S)0000015NAH2P(S)00000SALT600000MONOS(S)00000NA2HP(S)00000SALT700000SALT800000DISOD

20、(S)00000NH4CL(S)00000NAOH:(S)00000NAOH(S)00000NACL(S)00000CL-00000SO300000TRIPL(S)00000DOUBL(S)00000GLAUB(S)00000SALT500000SALT900000HSO4-0005.0647e-150.44713704SO4-0001.0477e-090.33764993SALT1000000WEGSC(S)00000TRONA(S)00000SALT1100000SALT1200000SALT1300000SALT1400000SALT15000001.3.7 發(fā)煙硫酸工段物料圖 1-6發(fā)

21、煙硫酸工藝路線圖表 1-6發(fā)煙硫酸系統(tǒng)總物料16出口物流4362676869物流說明二氧化硫空氣濃硫酸煙氣發(fā)煙硫酸Temperature C50256570.6967365.02325Prere bar21.01325322Vapor Frac11001Mole Flow kmol/hr156.38144007246.416867405.662325.3243Mass Flow kg/hr9842.56111540.15660800673015.19167.536Volume Flow cum/hr2061.3339781.440380.477115391.48924571.782Enlpy Gcal/hr-11.1471-0.00065-1330.6458-1344.63-0.3465H2SO40006.9723e-303.9021e-09SALT1600000SALT1700000NO0.00270894000017Mole Flow kmol/hrN2031609.076082306.9241O21.0988038400.93931512.38676C027.018230004.565